This page describes the IBM SMS card "ASJ", and is part of the SMS card database.

Function of the card:
6V and 12V Series Transistor
6/12V Slave
+12V Slave

Power Transistor for Power Supply series regulator
power supply
P/U Frame, 3135 processing unit

Part number: 370841

PCB number: 484713

Used in: IBM 1443 Printer, IBM System/370

Cap code: None (details)

IBM SMS card type ASJ 370841 IBM SMS card type ASJ 370841 IBM SMS card type ASJ 370841 IBM SMS card type ASJ 370841 IBM SMS card type ASJ 370841 IBM SMS card type ASJ 370841

Image courtesy of Henk Stegeman

Pinout:

A
B B
C B
D B
E B
F
G C
H C
J C
K C
L
M E
N E
P E
Q E
R
References: IBM 1443 ALD, p174
Coslet data

The information on these pages comes from a variety of sources, especially old IBM documents on bitsavers.org, as well as information from the IBM 1401 restoration team, especially Tim Coslet's SMS data and Jim Hunt's data. Much of this information was obtained through OCR, so don't expect complete accuracy. These pages are not associated with IBM in any way.